“America is so great, so stunningly singular, that it needs to be discovered not once but eternally. The first foreigner is ever changing, his proponents holding up artifacts or rethinking twice-told tales, map in hand. He was of course Leif Ericsson. For Welsh-wishers, he was Madoc ab Owain Gwynedd and he reached Alabama. He came from Carthage, he was a Phoenician, he left strange mounds in Michigan. He was a monk named Hwui Shan or Hoei-shin or Hui-sh